997673269 has 2 divisors, whose sum is σ = 997673270. Its totient is φ = 997673268.

The previous prime is 997673251. The next prime is 997673293. The reversal of 997673269 is 962376799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 985332100 + 12341169 = 31390^2 + 3513^2 .

It is a cyclic number.

It is not a de Polignac number, because 997673269 - 2¹⁷ = 997542197 is a prime.

It is a super-2 number, since 2×997673269² = 1990703903354292722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (997673249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498836634 + 498836635.

It is an arithmetic number, because the mean of its divisors is an integer number (498836635).

Almost surely, 2^997673269 is an apocalyptic number.

It is an amenable number.

997673269 is a deficient number, since it is larger than the sum of its proper divisors (1).

997673269 is an equidigital number, since it uses as much as digits as its factorization.

997673269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7715736, while the sum is 58.

The square root of 997673269 is about 31585.9663300017. The cubic root of 997673269 is about 999.2238207016.

The spelling of 997673269 in words is "nine hundred ninety-seven million, six hundred seventy-three thousand, two hundred sixty-nine".